Ozd2p1.7z.001 -

Do you have all the (like .002 or .003) for this specific file?

: If you attempt to open only the .001 file without the other parts present, you will likely receive an "Unexpected end of data" error. How to Extract OZD2P1.7z.001

: 7-Zip is the native and free utility for this format. macOS : Use The Unarchiver or Keka . Do you have all the (like

: Ensure every numbered segment of the OZD2P1 series is in the same directory. Use 7-Zip or WinRAR : Right-click only the .001 file. macOS : Use The Unarchiver or Keka

: Applications like RAR by RARLAB can handle split 7z files.

You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. How to Extract .7z.001 files - Microsoft Q&A